//
//  UIImage+Extensions.swift
//  NCCommunication
//
//  Created by Marino Faggiana on 21/12/20.
//  Copyright © 2020 Marino Faggiana. All rights reserved.
//  Copyright © 2021 Henrik Storch. All rights reserved.
//
//  Author Marino Faggiana <marino.faggiana@nextcloud.com>
//  Author Henrik Storch <henrik.storch@nextcloud.com>
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <http://www.gnu.org/licenses/>.
//

import UIKit

extension UIImage {
    internal func resizeImage(size: CGSize, isAspectRation: Bool) -> UIImage? {
        let originRatio = self.size.width / self.size.height
        let newRatio = size.width / size.height
        var newSize = size

        if isAspectRation {
            if originRatio < newRatio {
                newSize.height = size.height
                newSize.width = size.height * originRatio
            } else {
                newSize.width = size.width
                newSize.height = size.width / originRatio
            }
        }

        UIGraphicsBeginImageContextWithOptions(newSize, true, 1.0)
        self.draw(in: CGRect(origin: .zero, size: newSize))
        defer { UIGraphicsEndImageContext() }
        return UIGraphicsGetImageFromCurrentImageContext()
    }
}
